Relative Centrifugal Force
This tool calculates the relative centrifugal force (RCF) for a centrifuge.
You can enter the rotor radius and rotational speed (RPM) to calculate RCF, or enter the rotor radius and desired RCF to calculate the required rotational speed.
What is the Relative Centrifugal Force (RCF) Calculator?
The RCF Calculator allows you to determine the relative centrifugal force for a centrifuge rotor. It supports flexible calculations to help you prepare experiments with accurate centrifugation conditions.
You can either enter the rotor radius and rotational speed (RPM) to calculate the resulting RCF, or input the rotor radius and desired RCF to calculate the required rotational speed.
Key Features
- Dual Calculation Modes:
Calculate RCF from radius and RPM, or calculate RPM from radius and target RCF. - Built-in Rotor Database:
The calculator includes hundreds of commonly used centrifuge rotors. You can select a rotor directly and the tool will automatically provide the corresponding parameters:- Minimum radius
- Maximum radius
- Maximum allowed RPM
- Supported Brands:
Thermo Scientific, Beckman, IEC, Composite, Piramoon, Sorvall. - Error Reduction:
Automatically handles calculations to minimize mistakes and ensure reproducible results.
Conversion Formula
RCF (×g) can be calculated using the standard formula:
RPM = sqrt(RCF / (1.118 × 10-5 × R))
Where R is the rotational radius in centimeters.
How It Works
- Input Parameters:
Enter the rotor radius and either RPM or desired RCF. - Select Rotor (Optional):
Choose from hundreds of pre-defined rotor models to automatically fill in radius and max RPM values. - Instant Calculation:
The missing parameter (RCF or RPM) is calculated automatically and displayed in real-time.
Significance in Laboratory Work
Accurate RCF calculations are critical for reproducible centrifugation, preventing sample damage, and ensuring proper separation. Built-in rotor data and automated computation simplify experimental planning and improve laboratory efficiency.
